... cattle2) Manufacture process: extraction, purification, concentration, polishing, filtration, drying, grinding, sifting and blending.Applications:1) Industrial Gelatin often used ... ) Blocker for Photosensitized film: combined with dichromate, gelatin can be used to make negative photosensitized film.Please ... contact us if you are interested in purchasing gelatin or want to know more details about it. ...